$100 I Bond with 0.00% Fixed Rate Purchased July 2020

 Jan
1
Infla
tion
Rate
Com
posite
Rate
Feb
1
Mar
1
Apr
1
May
1
Jun
1
Jul
1
Infla
tion
Rate
Com
posite
Rate
Aug
1
Sep
1
Oct
1
Nov
1
Dec
1
2020 100.000.53%1.06%100.08100.16100.28100.36100.442020
2021100.520.84%1.68%100.68100.80100.96101.08101.24101.361.77%3.54%101.64101.96102.24102.56102.842021
2022103.163.56%7.12%103.76104.36105.00105.60106.20106.844.81%9.62%107.68108.52109.36110.24111.122022
2023111.963.24%6.48%112.56113.16113.76114.36114.96115.601.69%3.38%115.92116.24116.56116.88117.242023
2024117.561.97%3.94%117.96118.32118.72119.08119.48119.881.48%2.96%120.16120.48120.76121.04121.362024
2025121.640.95%1.90%121.84122.04122.20122.40122.60122.801.43%2.86%123.08123.40123.68123.96124.282025
2026124.561.56%3.12%124.88125.20125.52125.84126.16126.521.67%3.34%126.88127.24127.56127.92128.282026
2027128.64

From $100.00 to $128.64 over 6.5 years = 3.91% average annual increase compounded semi-annually.

Generated  05/01/26  08:02